Review on 🐶 ROFAKU Dog Whistles: 2PCS Ultrasonic Whistles to Stop Barking with Adjustable Pitch - Ultimate Dog Training Tools for Pet Training in 2020! by Athenasby Whitney

Seems to be another misleading list of ASINs being hijacked. The good reviews don't even apply to this product. As it turns out, it's not as advertised. In case it matters in the future, this review is about an ultrasonic dog whistle that is not ultrasonic at all. I know I have very good hearing, I can hear above 19kHz but that's supposed to be more in the 24kHz range as is common with dog whistles. I was curious if it even broke at 10kHz and as it turns out the answer is no. The transmission frequency is 8 kHz. As we age we gradually lose the ability to hear higher frequencies, but I suspect most people will hear 8kHz. What a waste of time and money.